a. Describe ONE evolutionary consequence of using insecticides to kill pests rather than ultrasonic sound devices to disperse pests. (1 point) b. Construct a graph using data in the table to represent the effect of the ultrasonic device that emitted sound at 40 kHz on both grasshoppers and mosquitoes in region 2. (4 points) c. Determine in which case(s) an ultrasonic sound device was effective at repelling a pest species. Explain the difference in the numbers of grasshoppers and mosquitoes before ultrasonic sound exposure between regions 1 and 2. Explain why mosquitoes were less affected by ultrasonic sound exposure at 48 kHz compared to 40 kHz. (3 points) d. Bat species use echolocation and morphological adaptations to "see" with sound. Bats use echolocation to detect obstacles in flight, hunt for food, and find their roosts. Echolocation calls are usually ultrasonic, ranging in frequency from 20 to 200 kHz. Insectivorous bat species eat lacewings and moths as their primary food source. Predict the maximum frequency that lacewings and moths are likely to be able to detect. Justify your prediction. (2 points)
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When insecticides are used, some pests may survive due to genetic mutations that make them resistant to the chemicals. These resistant pests then pass on their genes to their offspring, leading to a population of pests that are no longer affected by the Show more…
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